Bicycle frame



FIG. 1 is a perspective view illustrating the design of my bicycle frame;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevation view thereof; and

FIG. 7 is a front elevation view thereof.

The broken lines in the drawing are for illustrative purposes only. 

The ornamental design for a bicycle frame, as shown and described. 